Which layer of the atmosphere lies close to the earth...? Mcqs

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Which layer of the atmosphere lies close to the earth...?

(A) Stratosphere
(B) Mesosphere

(C) Troposphere
(D) Thermosphere

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Quality rating of deisel is called...?

(A) Octane
(B) Cetane

(C) Protane
(D) Butane

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An example of an abiotic component __________...?

(A) Plants
(B) Soil

(C) Animals
(D) Bacteria

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A pulsar is a rapidly spinning neutron star which emits:...?

(A) A blinding light when it aligns with the planets
(B) Radio waves detectable from Earth

(C) A gravitational pull which attracts high energy dust particles
(D) Enough energy to power itself indefinitely

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Celestial body that affects tides of Ocean is...?

(A) Sun
(B) Moon

(C) Galaxy
(D) Meteorites

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Escape velocity depends on ________...?

(A) Mass of the object trying to escape
(B) Radius of the planet or celestial body

(C) Both mass and radius of the planet or celestial body
(D) The velocity of the rotating planet

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The phenomenon of dispersion light can be observed experimentally by passing a white light through ____...?

(A) Lens
(B) Prism

(C) Mirror
(D) Grating

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Skin is _____ thick...?

(A) 2mm
(B) 2cm

(C) 3mm
(D) 3cm

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An element that does not occur in nature but can be produced artificially is__________...?

(A) Plutonium
(B) Uranium

(C) Radium
(D) Thorium

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Kinetics is the study of________....?

(A) Motion and its causes
(B) Force and energy

(C) Friction
(D) Heat and temperature

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